[Public]
Hi all,
This week this patchset was tested on 4 systems, two dGPU and two APU based,
and tested across multiple display and connection types.
APU
* Single Display eDP -> 1080p 60hz, 1920x1200 165hz, 3840x2400 60hz
* Single Display DP (SST DSC) -> 4k144hz, 4k240hz
* Multi display -> eDP + DP/HDMI/USB-C -> 1080p 60hz eDP + 4k 144hz, 4k
240hz (Includes USB-C to DP/HDMI adapters)
* Thunderbolt -> LG Ultrafine 5k
* MST DSC -> Cable Matters 101075 (DP to 3x DP) with 3x 4k60hz
displays, HP Hook G2 with 2x 4k60hz displays
* USB 4 -> HP Hook G4, Lenovo Thunderbolt Dock, both with 2x 4k60hz DP
and 1x 4k60hz HDMI displays
* SST PCON -> Club3D CAC-1085 + 1x 4k 144hz, FRL3, at a max resolution
supported by the dongle of 4k 120hz YUV420 12bpc.
* MST PCON -> 1x 4k 144hz, FRL3, at a max resolution supported by the
adapter of 4k 120hz RGB 8bpc.
DGPU
* Single Display DP (SST DSC) -> 4k144hz, 4k240hz
* Multiple Display DP -> 4k240hz + 4k144hz
* MST (Startech MST14DP123DP [DP to 3x DP] and 2x 4k 60hz displays)
* MST DSC (with Cable Matters 101075 [DP to 3x DP] with 3x 4k60hz
displays)
The testing is a mix of automated and manual tests. Manual testing includes
(but is not limited to)
* Changing display configurations and settings
* Video/Audio playback
* Benchmark testing
* Suspend/Resume testing
* Feature testing (Freesync, HDCP, etc.)
Automated testing includes (but is not limited to)
* Script testing (scripts to automate some of the manual checks)
* IGT testing
The testing is mainly tested on the following displays, but occasionally there
are tests with other displays
* Samsung G8 Neo 4k240hz
* Samsung QN55QN95B 4k 120hz
* Acer XV322QKKV 4k144hz
* HP U27 4k Wireless 4k60hz
* LG 27UD58B 4k60hz
* LG 32UN650WA 4k60hz
* LG Ultrafine 5k 5k60hz
* AU Optronics B140HAN01.1 1080p 60hz eDP
* AU Optronics B160UAN01.J 1920x1200 165hz eDP
* Samsung ATNA60YV02-0 3840x2400 60Hz OLED eDP
The patchset consists of the amd-staging-drm-next branch (Head commit -
drm/amd/display: Promote DC to 3.2.368) with new patches added on top of it.
Tested on Ubuntu 24.04.3, on Wayland and X11, using Gnome.
Tested-by: Dan Wheeler <[email protected]>
Thank you,
Dan Wheeler
Sr. Technologist | AMD
SW Display
------------------------------------------------------------------------------------------------------------------
1 Commerce Valley Dr E, Thornhill, ON L3T 7X6
amd.com
-----Original Message-----
From: Tom Chung <[email protected]>
Sent: Tuesday, February 3, 2026 10:02 AM
To: [email protected]
Cc: Wentland, Harry <[email protected]>; Li, Sun peng (Leo)
<[email protected]>; Pillai, Aurabindo <[email protected]>; Li, Roman
<[email protected]>; Lin, Wayne <[email protected]>; Chung, ChiaHsuan (Tom)
<[email protected]>; Zuo, Jerry <[email protected]>; Wheeler, Daniel
<[email protected]>; Wu, Ray <[email protected]>; LIPSKI, IVAN
<[email protected]>; Hung, Alex <[email protected]>
Subject: [PATCH 00/16] DC Patches Feb 09 2026
This DC patchset brings improvements in multiple areas. In summary, we have:
- Fix system resume lag issue
- Correct hubp GfxVersion verification
- Add parse all extension blocks for VSDB
- Increase DCN35 SR enter/exit latency
- Refactor virtual directory reorganize encoder and hwss files
- Set enable_legacy_fast_update to false for DCN36
- Avoid updating surface with the same surface under MPO
Cc: Daniel Wheeler <[email protected]>
Alex Hung (1):
drm/amd/display: Fix the incorrect type in dml_print
Bhuvanachandra Pinninti (1):
drm/amd/display: Refactor virtual directory reorganize encoder and
hwss files.
Clay King (1):
drm/amd/display: bypass post csc for additional color spaces in dal
Leo Li (1):
drm/amd/display: Increase DCN35 SR enter/exit latency
Leon Huang (1):
drm/amd/display: Check frame skip capability in Sink side
Muaaz Nisar (1):
Revert "drm/amd/display: mouse event trigger to boost RR when idle"
Nicholas Carbones (2):
drm/amd/display: Correct hubp GfxVersion verification
drm/amd/display: Revert "Migrate DCCG register access from hwseq to
dccg component."
Peichen Huang (1):
drm/amd/display: use enum value for panel replay setting
Ray Wu (1):
drm/amd/display: Parse all extension blocks for VSDB
Roman Li (1):
drm/amd/display: Make GPIO HPD path conditional
Taimur Hassan (2):
drm/amd/display: [FW Promotion] Release 0.1.46.0
drm/amd/display: Promote DC to 3.2.369
Tom Chung (1):
drm/amd/display: Fix system resume lag issue
Wayne Lin (1):
drm/amd/display: Avoid updating surface with the same surface under
MPO
YiLing Chen (1):
drm/amd/display: set enable_legacy_fast_update to false for DCN36
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 16 +++++-
drivers/gpu/drm/amd/display/dc/Makefile | 2 +-
.../display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c | 16 +++---
drivers/gpu/drm/amd/display/dc/core/dc.c | 2 +-
.../gpu/drm/amd/display/dc/core/dc_resource.c | 4 +-
.../gpu/drm/amd/display/dc/core/dc_stream.c | 13 -----
drivers/gpu/drm/amd/display/dc/dc.h | 2 +-
.../amd/display/dc/dccg/dcn20/dcn20_dccg.c | 54 +------------------
.../amd/display/dc/dccg/dcn20/dcn20_dccg.h | 18 ++-----
drivers/gpu/drm/amd/display/dc/dio/Makefile | 9 ++++
.../{ => dio}/virtual/virtual_link_encoder.c | 2 - .../{ =>
dio}/virtual/virtual_link_encoder.h | 0
.../virtual/virtual_stream_encoder.c | 1 -
.../virtual/virtual_stream_encoder.h | 0
.../drm/amd/display/dc/dml/dcn35/dcn35_fpu.c | 4 +-
.../amd/display/dc/dml2_0/display_mode_util.c | 2 +-
.../drm/amd/display/dc/dpp/dcn30/dcn30_dpp.c | 21 ++++++--
.../drm/amd/display/dc/dpp/dcn30/dcn30_dpp.h | 4 ++
.../amd/display/dc/dpp/dcn401/dcn401_dpp.c | 6 +--
.../amd/display/dc/hubp/dcn10/dcn10_hubp.c | 35 ++++++------
.../amd/display/dc/hubp/dcn20/dcn20_hubp.c | 28 +++++-----
.../amd/display/dc/hubp/dcn30/dcn30_hubp.c | 28 +++++-----
.../amd/display/dc/hwss/dcn10/dcn10_hwseq.c | 5 +-
.../amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 29 +++++++---
.../amd/display/dc/hwss/dcn201/dcn201_hwseq.c | 5 +-
.../amd/display/dc/hwss/dcn21/dcn21_hwseq.c | 9 ++--
.../amd/display/dc/hwss/dcn30/dcn30_hwseq.c | 5 +-
.../amd/display/dc/hwss/dcn31/dcn31_hwseq.c | 5 +-
.../amd/display/dc/hwss/dcn32/dcn32_hwseq.c | 5 +-
.../amd/display/dc/hwss/dcn35/dcn35_hwseq.c | 3 +-
.../amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 5 +-
drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h | 4 --
drivers/gpu/drm/amd/display/dc/link/Makefile | 3 +-
.../hwss/link_hwss_virtual.c} | 2 +-
.../hwss/link_hwss_virtual.h} | 6 +--
.../drm/amd/display/dc/link/link_factory.c | 8 +--
.../dc/link/protocols/link_dp_panel_replay.c | 14 ++++-
.../amd/display/dc/link/protocols/link_hpd.c | 9 +++-
.../dc/resource/dce100/dce100_resource.c | 2 +-
.../dc/resource/dce120/dce120_resource.c | 2 +-
.../dc/resource/dcn10/dcn10_resource.c | 2 +-
.../dc/resource/dcn20/dcn20_resource.c | 2 +-
.../dc/resource/dcn201/dcn201_resource.c | 2 +-
.../dc/resource/dcn21/dcn21_resource.c | 2 +-
.../dc/resource/dcn30/dcn30_resource.c | 2 +-
.../dc/resource/dcn301/dcn301_resource.c | 2 +-
.../dc/resource/dcn31/dcn31_resource.c | 2 +-
.../dc/resource/dcn314/dcn314_resource.c | 2 +-
.../dc/resource/dcn315/dcn315_resource.c | 2 +-
.../dc/resource/dcn316/dcn316_resource.c | 2 +-
.../dc/resource/dcn32/dcn32_resource.c | 2 +-
.../dc/resource/dcn321/dcn321_resource.c | 2 +-
.../dc/resource/dcn35/dcn35_resource.c | 2 +-
.../dc/resource/dcn351/dcn351_resource.c | 2 +-
.../dc/resource/dcn36/dcn36_resource.c | 4 +-
.../dc/resource/dcn401/dcn401_resource.c | 2 +-
.../gpu/drm/amd/display/dc/virtual/Makefile | 30 -----------
.../gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 15 ++++++
58 files changed, 229 insertions(+), 238 deletions(-) rename
drivers/gpu/drm/amd/display/dc/{ => dio}/virtual/virtual_link_encoder.c (99%)
rename drivers/gpu/drm/amd/display/dc/{ => dio}/virtual/virtual_link_encoder.h
(100%) rename drivers/gpu/drm/amd/display/dc/{ =>
dio}/virtual/virtual_stream_encoder.c (99%) rename
drivers/gpu/drm/amd/display/dc/{ => dio}/virtual/virtual_stream_encoder.h
(100%) rename drivers/gpu/drm/amd/display/dc/{virtual/virtual_link_hwss.c =>
link/hwss/link_hwss_virtual.c} (98%) rename
drivers/gpu/drm/amd/display/dc/{virtual/virtual_link_hwss.h =>
link/hwss/link_hwss_virtual.h} (92%) delete mode 100644
drivers/gpu/drm/amd/display/dc/virtual/Makefile
--
2.43.0
